What Is a Light-year?
Space is so vast that scientists don’t use miles to measure how far stars are away from us. The number of miles would be too large to work w
TellMeWhy
A wonderful and marvelous collection of answers to intriguing questions everyone ask about the world covering almost every subject, from science and history to art, language, mathematics, technology, and homeschooling
What Is an Iceberg?
What Is an Iceberg? If a glacier reaches the sea, its forward edge breaks off, forming huge floating blocks of ice called icebergs. Icebergs
How Deep Is the Deepest Spot in the Ocean?
How Deep Is the Deepest Spot in the Ocean? Off the island of Guam in the Pacific Ocean is a very deep, crescent-shaped trench called the “
Why Do Fish Swim in Schools or Shoals?
Why Do Fish Swim in Schools or Shoals? Some fish swim alone; others stay in groups known as “schools” or “shoals”. A school of fish
Why Is the United States Called Uncle Sam?
Uncle Sam, popular symbol for the United States, usually associated with a cartoon figure having long white hair and chin whiskers and dress